Home / 13,236.89-18,267.20-7,268.58

Finding the Fourth Proportional to 13,236.89, 18,267.20 and 7,268.58

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Solution

The fourth proportional to 13,236.89, 18,267.20 and 7,268.58 is: 10,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.89 : 18,267.20 = 7,268.58 : x
  2. Step 2: Convert to fraction form
    13,236.89/18,267.20 = 7,268.58/x
  3. Step 3: Cross multiply
    13,236.89x = 18,267.20 × 7,268.58
  4. Step 4: Simplify right side
    13,236.89x = 132,776,595.49
  5. Step 5: Solve for x
    x = 132,776,595.49/13,236.89
  6. Step 6: Final answer
    x = 10,030.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.